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Fig. 15

image

Influence of shape for spherical (black), oblate (blue), and prolate (magenta) a-SilFe,FeS (left panels), a-C (middle panels), and a-C:H (right panels) grains with radius aV = 0.1 and 1 μm, solid and dashed lines, respectively. Top panels: Qsca∕(Qabs + Qsca). Bottom panels: g = ⟨cos θ⟩. The asymmetry factor curves appear smoother because the calculations were made for lesser wavelength points.

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